CNN  — 

A coronavirus variant first identified in India is “like Covid on steroids,” Andy Slavitt, former White House senior adviser for Covid-19 response, said Wednesday.

“(The Delta variant) is a more virulent strain,” Slavitt told CNN. “This is like Covid on steroids. You can be around people for less time and still get exposed.”

The Centers for Disease Control and Prevention has labeled the Delta variant a “variant of concern,” a designation given to strains of a virus that scientists believe are more transmissible or can cause more severe disease.

The CDC says the variant accounts for about 10% of coronavirus cases in the United States.

Slavitt said the variant provides people with one more reason to get vaccinated.

“If you have been vaccinated, you have very little to worry about,” he said.